PREPARATION:
- Prepare grill for direct grilling.
- Remove and discard stems from mushrooms; set caps aside. Combine remaining ingredients in small bowl.
- Brush both sides of mushroom caps with soy sauce mixture. Grill mushrooms, top sides up, on covered grill over medium coals 3 to 4 minutes. Brush tops with soy sauce mixture; turn over. Grill 2 minutes more or until mushrooms are lightly browned. Turn again; grill, basting frequently, 4 to 5 minutes or until tender when pressed with back of metal spatula. Remove mushrooms; cut diagonally into 1/2-inch-thick slices.
